Can JavaScript frameworks like React or Vue also be optimized?

Yes, and this is often where great potential lies. Single Page Applications based on React, Vue, Svelte or Angular typically struggle with three problems: a large initial JavaScript bundle, slow rendering in the browser and poor indexability, because the actual content is only created via JavaScript. This mainly weighs on LCP and INP.

We address several points: Server-Side Rendering (SSR) or Static Site Generation (SSG) so the content is delivered as HTML right away, route-level code splitting, tree shaking, lazy loading of components and lean hydration strategies that activate only the genuinely interactive parts. For existing apps without SSR, we also evaluate a migration to modern meta-frameworks. For SaaS applications we describe the approach in more detail on a dedicated page.